:root {
  --bg: #100e0c;
  --ink: #f4ead8;
  --muted: #b7a890;
  --line: #2a241c;
  --amber: #e4a04a;
  --red: #e05645;
  --teal: #7dcec4;
  --paper: #1a1612;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(1200px 600px at 10% -10%, #2a1c10 0%, var(--bg) 55%);
  color: var(--ink);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.08;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}

.top {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  padding: 32px 40px 12px;
}

.kicker {
  margin: 0 0 8px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--amber);
}

h1 {
  margin: 0;
  font-family: Syne, sans-serif;
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
}

.lede {
  margin: 28px 0 0;
  color: var(--muted);
  max-width: 46ch;
  line-height: 1.55;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  padding: 8px 40px 18px;
}

button {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
}

button:disabled { opacity: 0.4; cursor: default; }

button.primary {
  background: var(--amber);
  color: #1a1208;
  border-color: var(--amber);
  font-weight: 500;
}

button.ghost { color: var(--muted); }

.speed, .seed {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
}

input[type="number"] {
  width: 72px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 8px;
  font: inherit;
}

input[type="range"] { accent-color: var(--amber); width: 140px; }

.stage-wrap { padding: 0 40px; }

canvas#line {
  width: 100%;
  height: auto;
  display: block;
  background: linear-gradient(#14110e, #0c0b09);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.legend {
  display: flex;
  gap: 18px;
  padding: 10px 4px 0;
  color: var(--muted);
  font-size: 12px;
}

.swatch {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 6px;
}

.swatch.wait { background: #c9b9a0; }
.swatch.work { background: var(--amber); }
.swatch.stuck { background: var(--red); }
.swatch.done { background: var(--teal); }

.stats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  padding: 22px 40px;
}

.stats article {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
}

.stats p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stats strong {
  display: block;
  margin-top: 8px;
  font-family: Syne, sans-serif;
  font-size: 1.55rem;
}

.stats article.hot strong { color: var(--red); }

.charts {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  padding: 0 40px 48px;
}

figure {
  margin: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 12px 8px;
}

figcaption {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 6px 8px;
}

.batch {
  padding: 0 40px 40px;
  color: var(--muted);
}

@media (max-width: 900px) {
  .top, .stats, .charts { grid-template-columns: 1fr; }
  .top, .controls, .stage-wrap, .stats, .charts, .batch { padding-left: 18px; padding-right: 18px; }
}